16. A population of scores forms a normal distribution with a mean of 40 and a...

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16. A population of scores forms a normal distribution with a mean of 40 and a standard deviation of 12.

a. What is the probability of randomly selecting a score less than X 34?

b. What is the probability of selecting a sample of n 9 scores with a mean less than M 34?

c. What is the probability of selecting a sample of n 36 scores with a mean less than M 34?

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Ali Khawaja

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